Poking-bar for gas-producers



(No Model.)

J. H. THOMAS.

POKING BAR FOR GAS PRODUCERS, am.

No. 387,021. Patented July 3l, 1888.

We'nesaea:

N. PErEHs. PrmkwLithngnphnr, washingwn, D. C.

UNITED STATES PATENT OFFICE.

JACOB H. THOMAS, OF PHILADELPHIA, PENNSYLVANIA.

POKlNG-BAR FOR GAS-PRODUCERS, 80C.

SPECIFICATION forming part of Letters Patent No. 387,021, dated July 31, 1888.

A pplcatiou filed August 1, 18r-7,

To all whom t may concern..-

Be it known that I, JAoon H. THoMAs, a citizen of the United States, residing in the city and county of Philadelphia, State ofPenu4 Sylvania, have invented a new and useful Improvenieutin PokingBars for G-as Producers, 85e., which improvement is fully set forth in the following specification and accompanying drawings.

My invention consists of a poking-bar for gas-producers, duc., having a shield, substantially as hereinafter fully set forth, whereby the workman is shielded from the products ot' combustion of said producer, Ste.

Figures l and 2 represent side elevations of a poker-bar embodying my invention, includ ing vertical sections of a gas-producer, the bar in Fig. 2 being partly eut away. Fig. 3 rcpresents a section in line .r fr, Fig. I.

Similar letters of reference indicate corresponding parts in the several figures.

Referring` to the drawings, A represents a poker-bar having a handle, B, and a working end, A', the latter being wider than the shank A2 of the bar, thus forming the shoulder E at the place ofjunetion of said end and shank.

On the shank A2 is a metallic or noncom bustible shield, D, ot' the form of an annulus, freely encircling the shank and bei ng ofgreater diameter than the opening in the gas producer F, so as to cover the same.

The poker-bar is operated as usual, and as it is raised and lowered the shield D, being loose on the shank A2, remains on the top of the producer, and thus covers the opening in the latter, whereby the fumes and flames, as produets of combustion in the producer, are prevented from escaping to any material extent, or at least from' reaching the workman, so that Serial No. 246,116. (No model.)

the latter is guarded by the shield and the work may be safely and comfortably performed. Vhen thc bar is raised for removal from the producer, the shield drops on the shoulder E, and is thus prevented from displacement from the bar. As the central opening of the shield is of less diameter than the handle B and shoulder F, the shank may be primarily eutat either place C, so as to permit the location ofthe shield on the bar, after which the bar is welded at said place C, so that the shield remains on the shank as a fixture ofthe bar, and may be carried with the same to and from the producer and inserted in either of the openings in the same without liability to be lost.

If desired, the handle B may be eut or left open, as shown in Fig. l, in order to admit the shield to the shank of the poker.

I am aware that it is not new to provide a poker-bar with a shield placed thereon, so as to prevent the escape of gas from the chamber in which it is used; but I am not aware that the particular construction herein described and claimed is old.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A poker-bar having the handle portion open or divided, the flat working end A', having the shoulder E, said end being wider at the shoulder than at the shank, and the shield D, loosely mounted on said shank, said parts being combined substantially as and for the purpose described.

JACOB H. THOMAS.

ifitiiesses:

JOHN A. WIEDERsHEIM, J AMES F. KELLY. 

